How to find the right Door Mail Slots AI guide

What the AI looks for in Door Mail Slots

Postal opening size

USPS guidance calls for a slot opening at least 1-1/2 x 7 inches Smaller slots may not be served.

Mounting height

Bottom of the opening at least 30 inches above the floor per USPS guidance This keeps carrier access and delivery reliable.

Through-door tunnel

Interior flap or tunnel sized to your door thickness It blocks drafts and hides the cutout.

Weather seal

Spring-loaded flap with brush or gasket seal It reduces drafts and noise.

Door material

Steel and fiberglass doors need cut-edge sealing; avoid cutting into the lock rail or glass Cutting can compromise insulation and the warranty.